Adjustable clamp for log-holders



D. PARKS.

ADJUSTABLE CLAMP FOR LOG HOLDERS. APPLICATION FILED JUNE 18. 1920.

1,385,188. Patented July 19,1921.

Dean is Par/Ks.

"UNITED STATES PATENT OFFICE.

DENNIS rears, or sr. Louis, MISSOURI.

ADJUSTABLE emu? FOR LOG-HOLDERS.

To all whom it may concern a 7 Be it known that I, DENNIs PA KS, a citizen of the United States, residing in the city of St. Louis and State of Missouri, have invented newand useful Im rovements in Adjustahle Clamps for elders, of which the following is a speci cation. r i

This invention relates to heel log holders and has for its general object to provide an adjustable clamping mechanism whereby the pressure on the'l may be simultaneously and uniformly a usted throughoutits n the manufacture of heels from pieced lifts, it is customary .to build a log of pieced lifts which is gradually forced downward in a log holder, which may be of very considerable length, extending through one or more floors of the'building. It is desirable to'produce sufficient frictional resistance to the movement of the logjin the holder to create thefnecessar pressure to cause the pasted sections oft eilog to be firmly comreseed together by the act of forcing the 0g through the holder as it is built up by the addition of pieces of leather applied at the top of the log. Heretofore, where the log holder has been of considerable length, it has beennecessary for the operator to make several adjustments at different heights on the log holder, and it has'been found very difiicnlt to make such adjustments uniform; and at the best, the present means of adjustment re uires the o eratorto go to dill'erent floors o thebuildmg to make the adjust ments, which, of course, consumes considerable'time. g a

According to my invention the clamping plate, or plates, on the log holder can be adjusted throughout the entire len h of the holder at one point and by a sing e manipulation.

The invention is illustrated in the accompanying drawing in which:

Figure 1 is a view in broken side elevation showing a portionof the heel builder with a lo holder thereon having my invention applied thereto. i y

Fig. 2 is a view in front elevation of a portion of a log holder with my invention ap plied thereto, and i Fig. 8 is a sectional plan view on the line 3-3 of Fig. 1. y i

Referrin npw to the drawing, the nu meral 1 in icates generally the frame of the ward in the 10 indicates an inc ined platform on which the Specification of Letters Patent. P tent d July 19 1921, Application filed June 13, 1920. Serial No. 390,017.

heel building machine in which 0 erates a plunger 2 for pressing the heel 1i ts downholder 3. The numeral 4 heel lifts or heel blanks are assembled, the numeral 5 a gage against which heel blanks may be built up and the numeral 6 a suitable carriage for moving the built up heel blanks oil of the table 4 and into the holder 3 in position to be operated on by the plunger 2.

The particular construction of which a portion is shown in this drawing is the same as illustrated in my pending application Ser. No. 344,287, filed December 12, 1919. It is also shown in my endin application Ser. No. 344,288, filed ecemfier 12, 1919. In the present case as in the case of the two applications referred to, it is contemplated that heel blanks shall be built up on the table 4 and forced in order into the log holder where they are held under compression by frictionalengagement with the walls of the holder. However, it will be clearly apparent from the description to follow that my invention is equally applicable, and in fact, is equally intended to apply, to the use of a log holder for logsbuilt up of pieced lifts, as above set forth in the statement of invention. 7

invention isshown embodied in connectlon with a device intended for building up heel blanks, not only to illustrate such application of the invention but because the assembling of heel blanks in a holder, as distinguished from the building up of a continuous log, is a method now widely used, and particularly in connection with prior machines and inventions of mine, and others jointly interested with me in such inventions. a

The holder 3 comprises generally a front or brcastplate 7 which is rigid, and against which the breastvof the heel blank 8, or of the heel log is adapted to rest and a back plate 9 which is recessed to receive the major portion of the rounded part of the heel, or heel log, as clearly shown in said Fig. 3. Both of the plates 7 and 9 may be of indefinite length and, as stated, the breast plate 7 isrigid, being secured at its upper end, to the frame 1 as indicated at 10 and throughout its length to suitable supports, not shown, in a well known manner. At suitable intervals throughout the length of the log holder the plates 7 and 9, constitutfront side of the breast per'adjusting bolt 13 there is mounted a passes through the yoke and engagesthe plate 7. On the up sprocket wheel 14 and on, the lowermost adj Listing bolt a similar sprocket wheel 15,

over "whichsprocket wheels is passed a chain 16 *Atinterm'ediate points in the length of the l g. holder the adjusting bolts 13 are providedavith. sprocket wheels 17, one of which is shown inFig Q, each of said sprocket wheels I being engaged on "either sidebyithe sprocket'chain 16. A guard 18 is mounted on the yoke" 11 fof each of the sprocket-wheels 17 which i embraces the sprocket chain 16 on either side of each sprocket wheel'17 in order to maintain sprocket chain '16 in engagement, with the teeth of saidsprock'et wheel 17. It will readily be seen that byturning the adjusting-bolts 13 they will be caused to bear against the rigid breast plate 7 and to move the "yokesl'lo'utward, thereby drawing the back plate 9: toward the breastplates 7 to produce the} requisite degree of pressure upon the heelblanks '8, or the log, as the case maybe in the holder? i It will also be readilyseen that the operator by grasping thefchai'n'16jand turning 7 itjat any point' inthe'length' or the log length of the holder.

holder, will correspondingly turn all of the adjustin'g'i'bolts so that the back plate 9 Wlllb uniformly-movedtoward the breast plate 7throughout the length of the holder. As this adjustment can'be made at any point in: the length of the holder, where the operator may be stationed, it is evident that he can at all times accurately determine the pressure'on the heel 16g,..'0r;the column of compiled heel blanks throughout the length of the log holder without the necessity of leaving; is position. --I' claim:-- 1* v j A log-'holderhaving an open upper end for receiving heel-blanks, lifts or the like to form the log' and'extending thence downward for an ilidefinitedistance, said holder comprising 'two' members providing between them an uninterrupted Space throughout'the length'of the holder for accommodating the log, one of said members being -movable for varying the area of said space,

and means foradjusting said movable member uniformly. throughoutits length relative to the other member from any point in the Q 2;In combination with a. log holder comprising two opposed members of indefinite len th nroviding between them an uninteryoke 11 engages rupted space thoughout the length of the holder for accommodating the log, one of said members being movable for varying the area of said space, aplurality of means located at different points throughout the length of the log holder and bearing on the outer face of said movable member for adjusting the same relative to the other memher, and means for simultaneously and uniformly operating said adjusting means.

3. A log-holder having an open upper end for receiving heel-blanks, lifts or the like for forming the log and extending thence downward an indefinite distance, said holder comprising two opposed members providing between them an uninterrupted space throughout the length of the holder for accommodating the log, one of said members being adjustable for varying the area, of said space, a plurality of means stationed at points remote from each other throughout the length of the log-holder for adjusting said member, and means for simultaneously operating all of said means from any point in the length of the holder.

4. A log-holder having an open upper end for receiving heel-blanks, lifts or the like for forming the log and adapted to extend thence downward an indefinite dis tance, through separated zones of accessibility to the holder, said holder comprising two opposed members providing between them an uninterrupted space throughout the lengthof the holder for accommodating the log, one of said members being movable for adjusting the area of saidspace, a plurality of adjusting devices located at points remote from each other throughout the length of the log-holder for adjusting said movable member toward andfrom the other member and means common to all of said devices for simultaneously and uniformly operating them-from any point in the length of the log-holder. j I V 5. In combination with a log holder comprising two members providing between them an uninterrupted space throughout the length of the holder for accommodating the log, one of said members being movable for clamping the log, a series of devices for moving said clamping member comprising adjusting bolts operating wholly on the ex terior of said clamping member, and means operatively connecting all of said adjusting bolts and operable from any point in the length of the holder to simultaneously turn all ofsaid bolts whereby to uniformly adjust said clamping member throughout the length of the holder.

6. In combination with a log holder comprising two members providing between them an uninterrupted space throughout the length ofthe holder for accommodating the log and having a clamping member, a plurality of devices for moving said clamping member comprising adjusting bolts prochain all of said bolts may be simultaneously vided with sprocket wheels and located at turned to uniformly adjust said clamping different points throughout the length of member. 10 the holder, said bolts operating wholly on In testimony whereof, I have hereunto 5 the exterior of said clamping member, and a set my hand.

sprocket chain cooperating with all of said sprocket Wheels whereby by turning said I DENNIS PARKS. 

